Reliability Design Using FMEA for Pressure Control Regulator of Aircraft Fuel System

항공기용 연료계통 압력조절밸브의 FMEA를 적용한 신뢰성 설계

  • 배보영 (건국대학교 대학원 항공우주정보시스템 공학과) ;
  • 이재우 (건국대학교 항공우주정보시스템 공학과) ;
  • 변영환 (건국대학교 항공우주정보시스템 공학과)
  • Published : 2009.03.31


The reliability assessment is performed for Pressure Control Regulator of Aircraft Fuel System using reliability procedure which consists of the reliability analysis and the Failure Modes and Effects Analysis(FMEA). The target reliability as MTBF(Mean Time Between Failure) is set to 5000hr. During the reliability analysis process, the system is categorized by Work Breakdown Structure(WBS) up to level 3, and a reliability structure is defined by schematics of the system. Since the components and parts that have been collected through EPRD/NPRD. The predicted reliability to meet mission requirements and operating conditions is estimated as 4375.9hr. To accomplish the target reliability, the components and parts with high RPN have been identified and changed by analyzing the potential failure modes and effects. By changing the configuration design of components and parts with high-risk, the design is satisfied target reliability.


  1. 한국기계연구원, “기계류부품 신뢰성 평가 통합기술 개발”, 특정연구개발사업/원자력연구개발사업 학술기사, 2001, pp.1, 17.
  2. 김태원, 박창준, “전자부품 품질 및 신뢰성”, 전자공학회지, 제18권, 제2호, 1991년 2월, pp. 45-54.
  3. Multiphysics FSI를 적용한 Regulator 성능해석, (주) 한화
  4. 김만수, 김원경, 송준엽, 신주환, 장수주, 최충현, 시스템 신뢰도예측 가이드, 교우사, 2004.
  5. (주)모아소프트 신뢰성기술연구소, Relex Reliability Studio 2007 Reference Manual, 2007.
  6. 김진호, 배보영, 이재우, 변영환, 김경미, “FMEA를 통한 공중발사 로켓, 미리내Ⅱ의 신뢰성 설계”, 한국항공우주학회지, 36권, 12호, 2008년 12월, pp. 1190-1200.
  7. Department of defense, MIl-STD-1629A.
  8. 한국표준협회컨설팅(Korean Standards Association Consulting), FMEA 기초이론 및 적용.